Linnæus, or more properly Linné, Karl von, great Swedish naturalist, specially in the department of botany, a branch to the study of which he was devoted from his earliest years; he was the founder of the system of the classification of plants which bears his name, and which is determined by the number and disposition of the reproductive organs, but which is now superseded by the natural system of Jussieu; he was professor at Upsala, and his works on his favourite subject were numerous, and extended far and wide his reputation as a naturalist (1707-1778).